+ /* not a single listening port? Add default. */
+ if (no_listenports() &&
+ !array_copyb(&Conf_ListenPorts, (char*) &defaultport, sizeof defaultport))
+ {
+ Config_Error(LOG_ALERT, "Could not add default listening Port %u: %s",
+ (unsigned int) defaultport, strerror(errno));
+
+ exit(1);
+ }
+
+ if (!Conf_ListenAddress)
+ Conf_ListenAddress = strdup_warn(DEFAULT_LISTEN_ADDRSTR);
+
+ if (!Conf_ListenAddress) {
+ Config_Error(LOG_ALERT, "%s exiting due to fatal errors!", PACKAGE_NAME);
+ exit(1);
+ }
+
+ /* No MOTD phrase configured? (re)try motd file. */
+ if (array_bytes(&Conf_Motd) == 0) {
+ if (Read_TextFile(Conf_MotdFile, "MOTD", &Conf_Motd))
+ Using_MotdFile = true;
+ }
+
+ /* Try to read ngIRCd help text file. */
+ (void)Read_TextFile(Conf_HelpFile, "help text", &Conf_Helptext);
+ if (!array_bytes(&Conf_Helptext))
+ Config_Error(LOG_WARNING,
+ "No help text available, HELP command will be of limited use.");
+
+#ifdef SSL_SUPPORT
+ /* Make sure that all SSL-related files are readable */
+ CheckFileReadable("CertFile", Conf_SSLOptions.CertFile);
+ CheckFileReadable("DHFile", Conf_SSLOptions.DHFile);
+ CheckFileReadable("KeyFile", Conf_SSLOptions.KeyFile);
+
+ /* Set the default ciphers if none were configured */
+ if (!Conf_SSLOptions.CipherList)
+ Conf_SSLOptions.CipherList = strdup_warn(DEFAULT_CIPHERS);
+#endif
+
+ return true;
+}
+
+/**
+ * ...
+ */
+static void Read_Config_File(const char *File, FILE *fd)
+{
+ char section[LINE_LEN], str[LINE_LEN], *var, *arg, *ptr;
+ int i, line = 0;
+ size_t count;
+
+ /* Read configuration file */
+ section[0] = '\0';
+ while (true) {
+ if (!fgets(str, LINE_LEN, fd))
+ break;
+ ngt_TrimStr(str);
+ line++;
+
+ /* Skip comments and empty lines */
+ if (str[0] == ';' || str[0] == '#' || str[0] == '\0')
+ continue;
+
+ /* Is this the beginning of a new section? */
+ if ((str[0] == '[') && (str[strlen(str) - 1] == ']')) {
+ strlcpy(section, str, sizeof(section));
+ if (strcasecmp(section, "[GLOBAL]") == 0
+ || strcasecmp(section, "[LIMITS]") == 0
+ || strcasecmp(section, "[OPTIONS]") == 0
+#ifdef SSL_SUPPORT
+ || strcasecmp(section, "[SSL]") == 0
+#endif
+ )
+ continue;
+
+ if (strcasecmp(section, "[SERVER]") == 0) {
+ /* Check if there is already a server to add */
+ if (New_Server.name[0]) {
+ /* Copy data to "real" server structure */
+ assert(New_Server_Idx > NONE);
+ Conf_Server[New_Server_Idx] =
+ New_Server;
+ }
+
+ /* Re-init structure for new server */
+ Init_Server_Struct(&New_Server);
+
+ /* Search unused item in server configuration structure */
+ for (i = 0; i < MAX_SERVERS; i++) {
+ /* Is this item used? */
+ if (!Conf_Server[i].name[0])
+ break;
+ }
+ if (i >= MAX_SERVERS) {
+ /* Oops, no free item found! */
+ Config_Error(LOG_ERR,
+ "Too many servers configured.");
+ New_Server_Idx = NONE;
+ } else
+ New_Server_Idx = i;
+ continue;
+ }
+
+ if (strcasecmp(section, "[CHANNEL]") == 0) {
+ count = array_length(&Conf_Channels,
+ sizeof(struct
+ Conf_Channel));
+ if (!array_alloc
+ (&Conf_Channels,
+ sizeof(struct Conf_Channel), count)) {
+ Config_Error(LOG_ERR,
+ "Could not allocate memory for new operator (line %d)",
+ line);
+ }
+ continue;
+ }
+
+ if (strcasecmp(section, "[OPERATOR]") == 0) {
+ count = array_length(&Conf_Opers,
+ sizeof(struct Conf_Oper));
+ if (!array_alloc(&Conf_Opers,
+ sizeof(struct Conf_Oper),
+ count)) {
+ Config_Error(LOG_ERR,
+ "Could not allocate memory for new channel (line &d)",
+ line);
+ }
+ continue;
+ }
+
+ Config_Error(LOG_ERR,
+ "%s, line %d: Unknown section \"%s\"!",
+ NGIRCd_ConfFile, line, section);
+ section[0] = 0x1;
+ }
+ if (section[0] == 0x1)
+ continue;
+
+ /* Split line into variable name and parameters */
+ ptr = strchr(str, '=');
+ if (!ptr) {
+ Config_Error(LOG_ERR, "%s, line %d: Syntax error!",
+ NGIRCd_ConfFile, line);
+ continue;
+ }
+ *ptr = '\0';
+ var = str;
+ ngt_TrimStr(var);
+ arg = ptr + 1;
+ ngt_TrimStr(arg);
+
+ if (strcasecmp(section, "[GLOBAL]") == 0)
+ Handle_GLOBAL(File, line, var, arg);
+ else if (strcasecmp(section, "[LIMITS]") == 0)
+ Handle_LIMITS(File, line, var, arg);
+ else if (strcasecmp(section, "[OPTIONS]") == 0)
+ Handle_OPTIONS(File, line, var, arg);
+#ifdef SSL_SUPPORT
+ else if (strcasecmp(section, "[SSL]") == 0)
+ Handle_SSL(File, line, var, arg);
+#endif
+ else if (strcasecmp(section, "[OPERATOR]") == 0)
+ Handle_OPERATOR(File, line, var, arg);
+ else if (strcasecmp(section, "[SERVER]") == 0)
+ Handle_SERVER(File, line, var, arg);
+ else if (strcasecmp(section, "[CHANNEL]") == 0)
+ Handle_CHANNEL(File, line, var, arg);
+ else
+ Config_Error(LOG_ERR,
+ "%s, line %d: Variable \"%s\" outside section!",
+ NGIRCd_ConfFile, line, var);
+ }
+}
+
+/**
+ * Check whether a string argument is "true" or "false".
+ *
+ * @param Arg Input string.
+ * @returns true if the input string has been parsed as "yes", "true"
+ * (case insensitive) or a non-zero integer value.
+ */
+static bool
+Check_ArgIsTrue(const char *Arg)
+{
+ if (strcasecmp(Arg, "yes") == 0)
+ return true;
+ if (strcasecmp(Arg, "true") == 0)
+ return true;
+ if (atoi(Arg) != 0)
+ return true;
+
+ return false;
+}
+
+/**
+ * Handle setting of "MaxNickLength".
+ *
+ * @param Line Line number in configuration file.
+ * @raram Arg Input string.
+ * @returns New configured maximum nickname length.
+ */
+static unsigned int
+Handle_MaxNickLength(int Line, const char *Arg)
+{
+ unsigned new;
+
+ new = (unsigned) atoi(Arg) + 1;
+ if (new > CLIENT_NICK_LEN) {
+ Config_Error(LOG_WARNING,
+ "%s, line %d: Value of \"MaxNickLength\" exceeds %u!",
+ NGIRCd_ConfFile, Line, CLIENT_NICK_LEN - 1);
+ return CLIENT_NICK_LEN;
+ }
+ if (new < 2) {
+ Config_Error(LOG_WARNING,
+ "%s, line %d: Value of \"MaxNickLength\" must be at least 1!",
+ NGIRCd_ConfFile, Line);
+ return 2;
+ }
+ return new;
+}
+
+/**
+ * Output a warning messages if IDENT is configured but not compiled in.
+ */
+static void
+WarnIdent(int UNUSED Line)
+{
+#ifndef IDENTAUTH
+ if (Conf_Ident) {
+ /* user has enabled ident lookups explicitly, but ... */
+ Config_Error(LOG_WARNING,
+ "%s: line %d: \"Ident = yes\", but ngircd was built without IDENT support!",
+ NGIRCd_ConfFile, Line);
+ }
+#endif
+}
+
+/**
+ * Output a warning messages if IPv6 is configured but not compiled in.
+ */
+static void
+WarnIPv6(int UNUSED Line)
+{
+#ifndef WANT_IPV6
+ if (Conf_ConnectIPv6) {
+ /* user has enabled IPv6 explicitly, but ... */
+ Config_Error(LOG_WARNING,
+ "%s: line %d: \"ConnectIPv6 = yes\", but ngircd was built without IPv6 support!",
+ NGIRCd_ConfFile, Line);
+ }
+#endif
+}
+
+/**
+ * Output a warning messages if PAM is configured but not compiled in.
+ */
+static void
+WarnPAM(int UNUSED Line)
+{
+#ifndef PAM
+ if (Conf_PAM) {
+ Config_Error(LOG_WARNING,
+ "%s: line %d: \"PAM = yes\", but ngircd was built without PAM support!",
+ NGIRCd_ConfFile, Line);
+ }
+#endif
+}
+
+/**
+ * Handle legacy "NoXXX" options in [GLOBAL] section.
+ *
+ * TODO: This function and support for "NoXXX" could be removed starting
+ * with ngIRCd release 19 (one release after marking it "deprecated").
+ *
+ * @param Var Variable name.
+ * @param Arg Argument string.
+ * @returns true if a NoXXX option has been processed; false otherwise.
+ */
+static bool
+CheckLegacyNoOption(const char *Var, const char *Arg)
+{
+ if(strcasecmp(Var, "NoDNS") == 0) {
+ Conf_DNS = !Check_ArgIsTrue( Arg );
+ return true;
+ }
+ if (strcasecmp(Var, "NoIdent") == 0) {
+ Conf_Ident = !Check_ArgIsTrue(Arg);
+ return true;
+ }
+ if(strcasecmp(Var, "NoPAM") == 0) {
+ Conf_PAM = !Check_ArgIsTrue(Arg);
+ return true;
+ }
+ return false;
+}
+
+/**
+ * Handle deprecated legacy options in [GLOBAL] section.
+ *
+ * TODO: This function and support for these options in the [Global] section
+ * could be removed starting with ngIRCd release 19 (one release after
+ * marking it "deprecated").
+ *
+ * @param Var Variable name.
+ * @param Arg Argument string.
+ * @returns true if a legacy option has been processed; false otherwise.
+ */
+static const char*
+CheckLegacyGlobalOption(const char *File, int Line, char *Var, char *Arg)
+{
+ if (strcasecmp(Var, "AllowRemoteOper") == 0
+ || strcasecmp(Var, "ChrootDir") == 0
+ || strcasecmp(Var, "ConnectIPv4") == 0
+ || strcasecmp(Var, "ConnectIPv6") == 0
+ || strcasecmp(Var, "OperCanUseMode") == 0
+ || strcasecmp(Var, "OperChanPAutoOp") == 0
+ || strcasecmp(Var, "OperServerMode") == 0
+ || strcasecmp(Var, "PredefChannelsOnly") == 0
+ || strcasecmp(Var, "SyslogFacility") == 0
+ || strcasecmp(Var, "WebircPassword") == 0) {
+ Handle_OPTIONS(File, Line, Var, Arg);
+ return "[Options]";
+ }
+ if (strcasecmp(Var, "ConnectRetry") == 0
+ || strcasecmp(Var, "IdleTimeout") == 0
+ || strcasecmp(Var, "MaxConnections") == 0
+ || strcasecmp(Var, "MaxConnectionsIP") == 0
+ || strcasecmp(Var, "MaxJoins") == 0
+ || strcasecmp(Var, "MaxNickLength") == 0
+ || strcasecmp(Var, "PingTimeout") == 0
+ || strcasecmp(Var, "PongTimeout") == 0) {
+ Handle_LIMITS(File, Line, Var, Arg);
+ return "[Limits]";
+ }
+#ifdef SSL_SUPPORT
+ if (strcasecmp(Var, "SSLCertFile") == 0
+ || strcasecmp(Var, "SSLDHFile") == 0
+ || strcasecmp(Var, "SSLKeyFile") == 0
+ || strcasecmp(Var, "SSLKeyFilePassword") == 0
+ || strcasecmp(Var, "SSLPorts") == 0) {
+ Handle_SSL(File, Line, Var + 3, Arg);
+ return "[SSL]";
+ }
+#endif
+
+ return NULL;
+}
+
+/**
+ * Strip "no" prefix of a string.
+ *
+ * TODO: This function and support for "NoXXX" should be removed starting
+ * with ngIRCd release 19! (One release after marking it "deprecated").
+ *
+ * @param str Pointer to input string starting with "no".
+ * @returns New pointer to string without "no" prefix.
+ */
+static const char *
+NoNo(const char *str)
+{
+ assert(strncasecmp("no", str, 2) == 0 && str[2]);
+ return str + 2;
+}
+
+/**
+ * Invert "boolean" string.
+ *
+ * TODO: This function and support for "NoXXX" should be removed starting
+ * with ngIRCd release 19! (One release after marking it "deprecated").
+ *
+ * @param arg "Boolean" input string.
+ * @returns Pointer to inverted "boolean string".
+ */
+static const char *
+InvertArg(const char *arg)
+{
+ return yesno_to_str(!Check_ArgIsTrue(arg));
+}
+
+/**
+ * Handle variable in [Global] configuration section.
+ *
+ * @param Line Line numer in configuration file.
+ * @param Var Variable name.
+ * @param Arg Variable argument.
+ */
+static void
+Handle_GLOBAL(const char *File, int Line, char *Var, char *Arg )
+{
+ struct passwd *pwd;
+ struct group *grp;
+ size_t len;
+ const char *section;
+
+ assert(File != NULL);
+ assert(Line > 0);
+ assert(Var != NULL);
+ assert(Arg != NULL);
+
+ if (strcasecmp(Var, "Name") == 0) {
+ len = strlcpy(Conf_ServerName, Arg, sizeof(Conf_ServerName));
+ if (len >= sizeof(Conf_ServerName))
+ Config_Error_TooLong(File, Line, Var);
+ return;
+ }
+ if (strcasecmp(Var, "AdminInfo1") == 0) {
+ len = strlcpy(Conf_ServerAdmin1, Arg, sizeof(Conf_ServerAdmin1));
+ if (len >= sizeof(Conf_ServerAdmin1))
+ Config_Error_TooLong(File, Line, Var);
+ return;
+ }
+ if (strcasecmp(Var, "AdminInfo2") == 0) {
+ len = strlcpy(Conf_ServerAdmin2, Arg, sizeof(Conf_ServerAdmin2));
+ if (len >= sizeof(Conf_ServerAdmin2))
+ Config_Error_TooLong(File, Line, Var);
+ return;
+ }
+ if (strcasecmp(Var, "AdminEMail") == 0) {
+ len = strlcpy(Conf_ServerAdminMail, Arg,
+ sizeof(Conf_ServerAdminMail));
+ if (len >= sizeof(Conf_ServerAdminMail))
+ Config_Error_TooLong(File, Line, Var);
+ return;
+ }
+ if (strcasecmp(Var, "Info") == 0) {
+ len = strlcpy(Conf_ServerInfo, Arg, sizeof(Conf_ServerInfo));
+ if (len >= sizeof(Conf_ServerInfo))
+ Config_Error_TooLong(File, Line, Var);
+ return;
+ }
+ if (strcasecmp(Var, "HelpFile") == 0) {
+ len = strlcpy(Conf_HelpFile, Arg, sizeof(Conf_HelpFile));
+ if (len >= sizeof(Conf_HelpFile))
+ Config_Error_TooLong(File, Line, Var);
+ return;
+ }
+ if (strcasecmp(Var, "Listen") == 0) {
+ if (Conf_ListenAddress) {
+ Config_Error(LOG_ERR,
+ "Multiple Listen= options, ignoring: %s",
+ Arg);
+ return;
+ }
+ Conf_ListenAddress = strdup_warn(Arg);
+ /* If allocation fails, we're in trouble: we cannot ignore the
+ * error -- otherwise ngircd would listen on all interfaces. */
+ if (!Conf_ListenAddress) {
+ Config_Error(LOG_ALERT,
+ "%s exiting due to fatal errors!",
+ PACKAGE_NAME);
+ exit(1);
+ }
+ return;
+ }
+ if (strcasecmp(Var, "MotdFile") == 0) {
+ len = strlcpy(Conf_MotdFile, Arg, sizeof(Conf_MotdFile));
+ if (len >= sizeof(Conf_MotdFile))
+ Config_Error_TooLong(File, Line, Var);
+ return;
+ }
+ if (strcasecmp(Var, "MotdPhrase") == 0) {
+ len = strlen(Arg);
+ if (len == 0)
+ return;
+ if (len >= LINE_LEN) {
+ Config_Error_TooLong(File, Line, Var);
+ return;
+ }
+ if (!array_copyb(&Conf_Motd, Arg, len + 1))
+ Config_Error(LOG_WARNING,
+ "%s, line %d: Could not append MotdPhrase: %s",
+ NGIRCd_ConfFile, Line, strerror(errno));
+ Using_MotdFile = false;
+ return;
+ }
+ if(strcasecmp(Var, "Password") == 0) {
+ len = strlcpy(Conf_ServerPwd, Arg, sizeof(Conf_ServerPwd));
+ if (len >= sizeof(Conf_ServerPwd))
+ Config_Error_TooLong(File, Line, Var);
+ return;
+ }
+ if (strcasecmp(Var, "PidFile") == 0) {
+ len = strlcpy(Conf_PidFile, Arg, sizeof(Conf_PidFile));
+ if (len >= sizeof(Conf_PidFile))
+ Config_Error_TooLong(File, Line, Var);
+ return;
+ }
+ if (strcasecmp(Var, "Ports") == 0) {
+ ports_parse(&Conf_ListenPorts, Line, Arg);
+ return;
+ }
+ if (strcasecmp(Var, "ServerGID") == 0) {
+ grp = getgrnam(Arg);
+ if (grp)
+ Conf_GID = grp->gr_gid;
+ else {
+ Conf_GID = (unsigned int)atoi(Arg);
+ if (!Conf_GID && strcmp(Arg, "0"))
+ Config_Error(LOG_WARNING,
+ "%s, line %d: Value of \"%s\" is not a valid group name or ID!",
+ NGIRCd_ConfFile, Line, Var);
+ }
+ return;
+ }
+ if (strcasecmp(Var, "ServerUID") == 0) {
+ pwd = getpwnam(Arg);
+ if (pwd)
+ Conf_UID = pwd->pw_uid;
+ else {
+ Conf_UID = (unsigned int)atoi(Arg);
+ if (!Conf_UID && strcmp(Arg, "0"))
+ Config_Error(LOG_WARNING,
+ "%s, line %d: Value of \"%s\" is not a valid user name or ID!",
+ NGIRCd_ConfFile, Line, Var);
+ }
+ return;
+ }